Tank and agitating construction for paint-spraying apparatus



A. H. DOWNS Filed Jan. 23 1928 TANK AND AGITATING CONSTRUCTION FOR PAINT SPRAYING APPARATUS JNVENTOR.

BY $4M 7 Oct. 29, 1929.

A. H. DOWNS 2 Sheets-Sheet 2 M INVENTOR.

ATTORNEYS.

1 Filed Jan. 25, 1928 Oct. 29, 1929.

TANK AND AGITATING CONSTRUCTION FOR PAINT SPRAYING APPARATUS Patented Oct. 29, 1929 UNITED STATES} PATENT 'OFFIQE AUSTIN H.- DOWNS, OF NEWARK, NEW JERSEY, ASSIGNOR '10 ECLIIf SE AIR BRUSH COM- PANY, INC., OF NEWARK, NEW JERSEY, A CORPORATION OF NEW JERSEY TANK AND AGITATING CONSTRUCTION wIIEOR PAIN T-SiR-AYING APPARATUS Application filed January 23, 1928. Serial No. 248,725.

This invention relates to improvements in tank and agitating mechanismtherefor and is particularlyiadapted for apparatusof this character which is designed for and used in connection with paint spraying equipment.

The principal object of this invention is the provision of a tank or container of any size adapted to hold liquid to be sprayed or distributed under pressure and having an agitating mechanism provided within the tank, with means fordriving said agitating mechanism mounted on top of the tank.

A further object of this invention is the provision of such a structure in which the agitating means is securely and properly held in positionin the lower part of the tank and in' which the tube or pipe through which the liquid is discharged from the tank is also suitably held in position, these parts forming a single assembly.

Further objects of this invention include improvements in details of. construction and arrangement whereby an eflicient construction of this-kind is provided capable of commercial production and assembly on an eco nomical basis and also designed for and capable of performing the work required. a

To the accomplishment of the foregoing and such other objects as may hereinafter appear, this invention consists'in' the con struction, combination and arrangement of parts hereinafter described andthensought to be defined in the appended claims, reference being had to the accompanying drawings forming a partrhereof and which shows,

, merely for the purpose of illustrative disclosure, a preferred embodiment of my inven 'tion, it being expressly understood, however, that various changes may be made in practice within the scope of the claims with 'out'digressing from my inventive idea.

, In the drawings-' y v v Figure 1 represents what we may call a front elevation of a tank or container'constructed in accordance with this invention:

Figure 2 is a top plan view thereof. Figure 3 is a view taken for the main part in vertical cross section on line 33 of Figure L;

Figure Lis a perspective" view of the lid or cover for the tank or containeran'd the,

attached parts, which are positioned within the tank or container, including the agitating means and means for holdin the same in position,'and the discharge tu e or pipe i associated therewith.

Referring now to the drawings,the numeral 1 designates the body of the tank or container. This may be of almost any size and shape commensurate with the requirements of the work and is preferably of metallic construction and of sufficient strength to withstand considerable fluid or air presand bolt construction 6, which s pivotally mounted as at 'Z on the tank or container. Thisflidv or cover may also be provided with handles 8 for the purpose of lifting and ready removal;

This lid ncover is arranged to support agitating means, the fluid discharge .pipe, means for driving the agitating means and various pipe connections with-their attached parts, whereby air or other fluid pressure may be. supplied to the tank or container and to the instrument for applying the liquid, such as a paint spray gun, as, well as an air filter, gauges and valves of various kinds. top of, the lid or cover is provided with a plurality of upwardly extending studs 9 which are adapted to support the plate 10 in The I a position raised and spaced above the top surface of the lidor cover, 1011 this plate or" support 10 is mounted a motor 11, which in the form shown is an electric motor and has the driving bevel gear 12 secured .to theend of the drive shaft 13. Another and larger stud or boss lextends upwardly from another. part of the lid or cover 2 and receives at its upper end a bearing 15 which rotatably receives the shaft 16 for operating the agitating means. lhis shaft 16 has the bevel gear 17 on its upper end meshing with the driving bevel gear 12, as clearly shown in Figure 3. ihe shaft 16 extends through the lid or cover to near the bottom of the tank 'or container and has the packing gland construction 18 provided in the lid or cover to make the joint fluid-tight. lhe lower end of the shaft 16 has a bearing in the frame or plate member 19 and on its extremity has the agitating member 20 which is in the form of a multiple bladed propeller-like element. This frame or plate member 19 is positively and securely held in spaced relation to the various parts of the tank or container from the lid or cover 2 thereof by means of a plurality of rods 21 which are securely attached at their lower ends to the frame or plate 19 and at their upper ends are screwed into a substantial part 22 of the lid or cover. In the form shown this substantial part 22 is in the form of a raised, thickened portion and also acts to receive the packing gland construction 18 previously. described. I This frame or plate member 19 also serves as a means forholding-in proper relation to" the other parts the liquid discharge pip 23, the lower-end of-which fits through an opening in the plate or frame 19 and the upper end of which passes through the lid or cover 2 as at\ 24:. At the upper end of this liquid discharge pipe 23 are the connections 25 to which the other tubes, pipes or conduits are adapted to be; connected to convey the liquid to the point ofapplication, such as a paint spray gun or the like, as is well understood.

Referring more particularly to Figure 2, the numeral 26 designates an air or fluid pressure pipe having a connection with a suitable source ofpressure and 27 a filter thereon and 28 a continuation of 'this air pipe, which passes under the plate 10 on which the motor 11 is mounted; This pipe 28 has 4 one branch 29 in which is positioned avalve 30 and reducing valve 31 and a gauge 32, which leads through the lid or cover of the tank or container so as to apply suitable airor other fluid pressure to the tank or container and upon the liquid contents thereof, whereby its liquid contents will be forced through the liquid discharge pipe 23 under pressure when the liquid discharge valvein the applying instrument is opened. The pipe 28 has another branch 33 in which is positioned a valve 34, a reducing valve 35 and a gauge 36, andwhich has the connection 37 adaptedv to receive a hose, pipes or other con duits, which in turn are adapted to be conyes nected to the application instrument, such as .a paint spray gun" or the like.) These parts are all suitably mounted upon and supported on the lid or cover of the tank or container and, therefore, form a very conveniently arranged assembly for the control of the pressure; under which the apparatus is designed to operate, and to insure that the liquid in the conta ner, such as paint, lacquer and in fact any fluid or plastic substance, adapted to be applied under pressure, will be thoroughly mixed and agitated before being discharged from the liquid discharge pipe.

The assembly of the agitating means and the driving means therefor on the lid or cover results in a firm and secure construction for the agitating means insuring a direct drive for the same with the consequent agitation of the liquid and the supply of an even mixture through the liquid discharge pipe to the point of application. Not only that but the fluid discharge pipe is securely held with its inlet end nearthe agitating member and in a fixed relation thereto, with the obvious consequent advantages of everrmixture of the liquid.

The parts. are all easily made andjreadily assembled so that the apparatus forms an economically manufactured assembly having ,the many advantages of a much more complicated apparatus, convenient for transportation or portability and eficient in operation.

What I claim is 1. In combination 7 with a tank or container, an apparatus of the character described including a lid or cover for the tank orcontainer, agitating means having a bearing in said lid or cover and extending a substantial distance within said tank or 'container, a motor for actuating said agitating means mounted upon said lid or cover, and a fluid discharge pipe associated with said agitating means and having its inlet end arranged in fixed and close relation to said agitating means, and a plate member fixedly secured within said tankor container near the bottom thereof and forming a support for said agitating means and said liquid dis charge pipe.

-2. In combination with a tank or container, anapparatus of the character de-' scribed including a lid or cover for the tank or container, agitating means having a hearing in said lid or'cover and extending a sub stantial distance within said tank or container, a motor for actuating said agitating means mounted upon said lid or cover, and a fluid discharge pipeassociated with said agitating means and having its inlet end arranged in fixed and close relationto said agitatirfg' means, and-a plate member fixedly secured within said tank or container near the bottom thereof and forming a support for said agitating means and said liquid discharge pipe, and a plurality of rods fixedly secured to said lid or cover and to said plate member for permanently holding the same 11!, position.

3. in .combination with a tank or container adapted to contain liquid under pressure, a lid or cover therefor, means for attaching the lid or cover to said tank or conlid or 'cover and extending downwardly therefrom, and a plate member fixedly semounted.

cured to said rods and having a bearing in which part of said agitating means is 4. In combination with a tank or container adapted to contain liquid under pressure, a lid or cover therefor, means for attaching the lid or cover to said tank or container, and agitating means supported from said lid or cover and extending to a point near the bottom of said tank or container, a support for said agitating means including a plurality of rods fixedly secured to said lid or cover and extending downwardly therefrom, and a plate member fixedly secured to said rods and having a bearing in which part of said agitating meansis mounted, and -a liquid discharge pipe connected to and extending through the lid or cover and also to said plate member and having its inlet end positioned in close relation to the agitating member proper.

5. In an apparatus of the character described including, in combination, a tank or container, a lid or cover therefor, and fastening means to attach the lid or cover to said tank or container, a motor supporting base supported in spaced relation to said lid or cover and a motor mounted thereon, a pressure pipe adapted to be connected to a source of fluid pressure extending beneath said motor supporting base and having a plurality of branches supported by said lid or cover, one of said branches leading through said lid or cover into the tank or container scribed including, in combination, a tank or container and a lid or cover therefor, a motor supporting base positioned upon' said lid or cover in spaced relation to the top surface thereof, and a motor mounted on said base, fluid pressure connections mounted upon said lid or cover adapted to be connected to a sourceof fluid pressure and having one branch leading through said cover into the tank or container, and another branch adapted to be connected to an instrument for the application of the liquid in the container, an agitating mechanism journaled in said lid or cover and having an agitating member positioned near the bottom of said tank or container, operative connections for driving said agitating mechanism from said motor, a liquid discharge pipe extending through said lid or cover and having its inlet end positioned near the bottom of said tank'or container near said agitating member.

scribed including'in combination, a tank or container and a lid or cover therefor, a motor supporting base positioned upon said lid or cover in spaced relation to the top surface thereof, and'a motor mounted on said base, fluid pressure connections mounted upon said lid or cover'adapted to be connected to a source of fluid pressure and having one branch leading throughsaid cover into the tank or'container, and another branch adapted to be connected to an instrument for the application of the liquid in the container, an agitating mechanism journaled in said lid or cover and having an agitating member 5 positioned near the bottom of said tank or container, operative connections for driving said agitating mechanism from said motor, a liquid discharge pipe extending through said lid or cover and having its inlet end posi and the other of said branches adapted to tioned near the bottom of said tank or conbe connected to an. instrument for the application of the liquid, and an agitating mechanism securedto said lid or cover and having the agitating member thereof positioned near the bottom of said tank or container, and operative connections for driving said agitating mechanism from said motor, said operative connections being mounted on top of said lid or cover, and aliquid discharge pipe extending through said lid or cover and hav-' ing its inlet end positioned near the bottom of said tank or container'and near the agitating member and having its top end adapt- 1 ed to be connected to the instrument for applying the liquid, whereby the liquid in the tank or container will be maintained under air' pressure through the connections deapplication.

6; In an apparatus of the character detainer near said agitating member, and a plate member fixedly secured in spaced relation to said lid or cover and aflording a bearing for said agitating mechanism and also cover in spaced relation to the tOpsurface thereof, and a motor mounted on said base, fluid pressure connections mounted upon said lid or cover adapted to be connected to a source of fluid pressure and having one branch leading through said cover into the tank or container, and another branch adapted to be connected to an instrument for the application of the liquid in the container, an agitating mechanism journaled in said lid or cover and having an agitating member positioned .near the bottom of said tank or container, operative connections for driving said agitating mechanism' from said motor, a

liquid discharge pipe extending through said lid or cover and having its inlet end positioned near the bottom of said tank or container near said agitating member, and a plate member afiording bearings for said agitating mechanism and also said liquid discharge pipe, and a pluralityof elongated rods connected to the inner surface of said lid or cover and to said plate member for supporting the same.

9. In'combination With a tank or container adapted to contain liquid under pressure, a

' lid or cover therefor, means for holding the lid or cover on said tank or container, agitating means ournaled 1n and supported from said lid or cover and extending to a point removed from the top of said tank or container and supporting means for said agitating means, said supporting means providing a bearing for said agitating means near its lower end.

10. In combination with a tank or container adapted to contain liquid under pressure, a lid or cover therefor, means for holding the lid or cover on said tank or container, agitating means journaled in and supported from said lid or cover and extending to a point removed from the top of said tank or container and supporting means for said agitating means, said supporting means being held in spaced relation to said lid or cover and affording a bearing for said agitating means near the lower end thereof.

11. In paint spraying equipment, the com-- bination of a tank or container, a lid or cover therefor and means for fastening said lid or cover to said tank or container, said lid or cover supporting the following "devices, a motor, fluid pressure connections adapted to be connected to a source of fluid pressure and to admit said pressure through the lid or cover into the tank or container, said connections also being adapted to be connected to an instrument for the application of the liquid in the container, agitating means journaled in the lid or cover including an elongated shaft having an agitatin member at the lower end thereof, said shaft aving operative connections with said motor on top of said lid or cover, and a bearing member for the lower end of said shaft supported from said lid or cover.

12, In paint spraying equipment, the combination of a tank or container, a lid or cover therefor, means for fastening said lid or cover to the tank or container whereby the latter 1 may receive fluid pressure, and the following devices supported by said lid or cover, a motor, agitating means including a shaft having operative connection with said motor on top of saidlid or cover, said shaft extending through the lid or cover and having an agitating member'on the lower endthereof, a

fiuid discharge pipe extending through said lid or cover and adjacent to said shaft and have hereunto set my hand this 16th day of January, 1928.

AUSTIN H. DOWNS. 

